Comparison

CSO de Boog vs Aventus | Osiris

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

OSIRIS for Aventus-students

Free

📚 Education

No ratingsView app →

About

CSO de Boog

Features

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App voor de ouders en leerlingen van CSO De Boog in Apeldoorn om op de hoogte te blijven van de laatste nieuwtjes en roosterwijzigingen. Dit zijn de mogelijkheden: - Roosterwijzigingen bekijken - Push notificaties ontvangen voor roosterwijzigingen en nieuws - Agenda bekijken - Nieuwsberichten bekijken - Algemene school informatie bekijken

About

Aventus | Osiris

Features

Read full description

Your grades, an updated timetable and the most important messages of Aventus. Don't miss out! Have a question? Check our FAQ (https://portaal.aventus.nl/knowledgebase-studenten/onderwerpen/osiris/null/qa-osiris?question=waar-kan-ik-terecht-met-vragen-over-osiris).

Screenshots

CSO de Boog4 screens

Aventus | Osiris4 screens

Verdict

The call

The clearest difference is update cadence: CSO de Boog at every 5 days against Aventus | Osiris's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CSO de Boog ships an update every 5 days, Aventus | Osiris every 4 months. Both last shipped on November 3, 2026.

Scorecard1 real difference · 5 level

CSO de Boog versus Aventus | Osiris: the parameters behind the verdict, then further details
Parameter	CSO de Boog	Aventus \| Osiris
Price	Free	Free
Update frequency	Every 5 days — better	Every 4 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	11.0	11.0
Further details — not scored
Size	11 MB	34 MB
Age rating	4+	4+
Developer	Stichting christelijk speciaal onderwijs Apeldoorn	CACI bv

In-app purchases

None

CSO de Boog

No in-app purchases

None

Aventus | Osiris

No in-app purchases

Questions

Is CSO de Boog free?

CSO de Boog is free to download, with no in-app purchases.

Is Aventus | Osiris free?

Aventus | Osiris is free to download, with no in-app purchases.

Do CSO de Boog or Aventus | Osiris have ads?

Neither CSO de Boog nor Aventus | Osiris shows ads.

Which is updated more often, CSO de Boog or Aventus | Osiris?

CSO de Boog ships an update every 5 days, and Aventus | Osiris every 4 months. Most recently, CSO de Boog was updated on November 3, 2026 and Aventus | Osiris on November 3, 2026.